Default theme implementation for main view template.
Available variables:
attributes: Remaining HTML attributes for the element.
css_name: A css-safe version of the view name.
css_class: The user-specified classes names, if any.
header: The optional header.
footer: The optional footer.
rows: The results of the view query, if any.
empty: The content to display if there are no rows.
pager: The optional pager next/prev links to display.
exposed: Exposed widget form/info to display.
feed_